Sheet shifter



, Dec. 17 192 M. GRlFFlNET AL SHEET SHIFTER Fiied March 15, 1928 2 Sheets-Sheet 1 In pen'fors B Hubert .fiubu/ n Dec; 17, 1929. M. GRIFFIN ET AL ,739,

SHEET SHIFTEfi Filed March 13, 1928 2 Sheets-Sheet 2- Inveruora fffc/lae/ Grififn Hubert Auburn urn/6:176

succeeding one.

Patented Dec. 17, 1929 UNITED STATES PATENT OFFICE MIQHAEL GRIFFIN, OF CINCINNATI, AND I-I'UBERT AUBURN, OF MOUNT HEALTHY, OHIO, ASSIGNOBS TO THE TENACITY MANUFACTURING COMPANY, OF READING,

OHIO, A CORPORATION OF OHIO SHEET SHIFTER Application filed March 13, 1928.

This invention relates to a loose leaf device and sheet manipulator therefor and has for an object the provision of a device that is simple in construction and operation.

Another object of the invention is to provide a device which offers advantages over the self contained shift devices in loose leaf books and also independent sheet manipulators or devices heretofore in use.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which:

Fig. 1 is a perspective View of a loose leaf visibly indexed record book with one cover in open position with record sheets therein.

Fig. 2 is a fragmental perspective view of the book with the manipulator of the invention in an operative position, but with the record sheets removed to more clearly disclose the structure.

Fig. 3 is an end View of the device shown in Fig. 2, but with the manipulator or shifter in position for removing one or more record sheets.

Fig. 4 is a view taken on line 44 of Fig. 1.

Fig. '5 is a perspective View of the manipulater or shifter of the invention.

The record book or unit may be of any suitable type wherein a pair of hingedly mounted members having curved fingers. or bars arranged in spaced parallel relation may receive perforated sheets or cards insuch. re lation as to render visible an upper or lower marginal portion of one sheet while the remainder of'such sheet is covered by the next As shown in Fig. 2 the loose leaf book or unit comprises a pair of L-shaped back strips 8 hingeclly mounted upon one another at 9 and suitably backed, if desired with fiber or other relatively soft members 10. The free edges .11 of members 8 have coverboards 12 hingedly mounted thereon, the inner faces 13 of which provide flat surfaces upon which the sheets 14 may rest while entries are made thereon by a clerk. v

' The strips 8 each carry endplates 15 at opposite ends. A simple latching device for holding the book or binder in closed and partly open positions may be providedby riveting Serial No. 261,352.

or otherwise mounting a bracket 16 of a reselective entry into one of a plurality of holes 19190 in one of the end plates 15. The strap, as noted in Fig. 4 lies fiat against the inner faces 20 of end plates 15. The edges 21 of plates 15 are notched as at 22 to receive a button 23 on strap 17 whereby the strap may be depressed to remove pin 18fron1 holes 19 or 190 to permit movement of the strips 8 about their hinged mounting in opening and closing the binder.

Suitably secured to each of the strips 8 is a plurality of equally spaced prongs or fingers 24 which extend through perforations 25 in the sheets or cards 14 for holding them in the binder against separation and relative displacement. The fingers are preferably arcuate. The fingers 24 on one of the strips 8 are offset from the fingers on the other of said strips at a distance equal to the space between adjacent perforations 25 in the sheets 14. As shown in Fig. 1, the fingers 24are grouped in pairs, each of which extend in opposite directions through one or more sheets and these pairs are so spaced that at leasttwo of the fingers on each strip will pass through each inserted sheet 14. As may be noted in Fig. 1, When the binder is in a closed position, four of the fingers hold each sheet in place.

IVhen it is desired to make entries upon the sheets 14, button 23 is depressed to remove pin 18 from perforation 19 and strips 8' are moved about the hinge 9 sufficiently to enter pin 18 in hole 190. The strips 8 are then held in a position intermediate those positons illustrated in Figs. 1 and 2.

. In order to insert, remove or shift sheets 14, v the binder is opened to the position shown in slots 28 equals the distance across a pair of fingers 24 (as shown in Fig. 4) or the diameter of one perforation 25. Secured to or made integral with body 26 are a plurality of arcuate fingers 240 spaced exactly-as fingers 24 are spaced on strip-8. -It should be-noted that fingers 24 are so spaced that every fifth perforation in sheet 24 will receive a finger of a given set. v The fingers 240 on shifter .26 are each offset from a given end of an adjacent slot 28 a distance equal to the diameter of one of the perforations 25 in the sheet 14.

From the foregoing it will be apparent that when the shifter 26 is mounted with fingers" 24 a of the binder in the slots 28 of the shifter, the

fingers 240 are each sp'acedby a diameter of one perforation from one ofthe 'free fingers 24 and by two such diameters from the next a-dja'cent finger 2 4. The shifter is movable longitudinally one such diameter so that when'a sheet l4 ismoved 0d of a finger 24 and onto fingers 240, the shifter may be moved to shift said'sheet 14. The sheet may then be moved-from fingers 240 onto fingers 24, having been shifted by the simple operation just described,--the distance of the diameter of one perforation 25. The exposed margins 29 on the sheets 14'correspondto the spacing of one or -more perforations2'5 as may be desired andconstitute visible index portions for the sheets. The shifter is automatically adjusted to :position for performing the operations just enumerated by entering one set of fingers 24-into slots -28 whereuponthe shifter will V moveunder its own weight until the ends of fingers 24 abutflange30-suitably secured to or integral "with body 27 of the-shifter. The shifter '26 may I be rocked upwardly on its mounting on fingers 24-to the position shown in full lines-in Fig. 3. In thi'sposition sheets 14' may be mounted-on and removed from the fingers 240.

The shifter 26 need nottake the exact form 'illustratedyit mayyfor example, be made by forming the =aligned'slots 28 in a rectangular,

oval or round tube to which fingers 240 are at- "tached; again it'may be made of a- U-shaped body-similarly slotted oriprovided witlrpins to define the limits of longitudinal shifting movement. In each of such'constructions the *body of the tube or U-"shaped body provides -the equivalent function of flange'3'0 in the illustrated embodiment.

a The operation ofthe device has'beende- J 's'cribed'with the structure. It needonly be added that any number of sheets may be added, removed'or'shifted at one time and thate'ach she'et' will always have at least two of-thefinge'rs 24, orfingers 240 extending therethrough so 'th at it is perfectly positioned at all times.

The'shifter is 'inexpensive Of-manufacture and permits of a' simpler and'less expensive binder "structure than is possiblein devices of such loose leaf devices. 7

member having aligned elongated slots therein, spaced fingers extending from the the fingers and the slots.

3. As a newarticle of manufacture a shifter for use with loose leaf devices of the class described comprising leaf retaining fingers, said shifter comprising a seriesof auxiliary fingers and means whereby said series of fingers may be mounted for limited longitudinal movement upon the fingers of suchloose leaf devices.

4. As a new article of manufacture a sheet shifter for use withloose leaf binders having spaced rows of oppositely extending fingers and comprising a holding member having aseries of auxiliary fingers adapted for'mounting on and relative longitudinal movement over one of the rows of fingers on such loose leaf binders.

5. ln a device'o-f the classdescribedthe combination of an arcuate body member havtherein, and a sheet-receiving member'on' one edge of the body.

shifter comprising abody having an angular extending flange with aligned elonga'tedslots therein and integral arcuate spaced fingers extending from said body.

'8. As a new-article of manufacture a shifter for use with loose leaf devices of theclass described I comprising leaf retaining fingers, said'shifter comprising a series'of auxiliary fingers and'means whereby"said series'of 7. As a new article of manufacture, a sheet body and abutment means disposed between fingers may be mounted for limited longitudinaland rocking movement upon 9. An attachment for loose-leaf binders havingcurved binder prongs, comprising a member mounted on said binder prongs for sliding transversal adjustment and having supplementary prongsthereon extending beyond the ends of the binder. prongs. s

10. An atachment for loose-leaf binders the fingers having sets of binder prongs, comprising 7 a member having a longitudinal pocket adapted to fit on to the ends of 'a set of the binder prongs and be slidablethereon, said tudinally thereof and having supplementary member having a plurality of supplementary prongs extending therefrom.

11. An attachment for loose-leaf binders having sets of binder prongs, comprising a longitudinally slotted member adapted to fit over the ends of one set of binder prongs and be capable of longitudinal movement on said prongs and adapted to engage in sliding contact the points of the other set of prongs, means for limiting the movement of the slidable member, and supplementary prongs rigidly secured in said slidable member and extending between the adjacent set of permanent prongs.

12. An attachment for loose-leaf binders having sets of binder prongs, comprising a member having a plurality of supplementary prongs adapted to slidably engage the ends of one set of permanent prongs of the binder, and means for flexibly connecting said member to the binder back.

13. The combination With a loose leaf binder having curved binder prongs for holding the leaves and having a hinged back, of means adapted to be temporarily mounted on said prongs, said means being adjustable on the prongs in a direction longitudinally of the binder back to effect the shifting of the leaves longitudinally of the binder back from one set of prongs to another.

14. An attachment for loose-leaf binders of the curved prong type having cooperating sets of prongs mounted on hinged binderback sections, comprising a removable member mounted on the outer ends of one of said sets of prongs for sliding adjustments longiprongs mounted thereon extending beyond the ends of the prongs on which said removable member is mounted.

In testimony whereof, We have hereunto subscribed our names this 9th day of March,

MICHAEL GRIFFIN. HUBERT AUBURN. 

